Click on the third or sixth rank to set the en passant target square.

EGTB: draw

# move score
1 Kb7 draw
2 Kd7 draw
3 Ra3 draw
4 Ra4 draw
5 Ra5 draw
6 Kb6 loss in 2 half-moves
7 Kb8 loss in 2 half-moves
8 Kc6 loss in 2 half-moves
9 Kc8 loss in 2 half-moves
10 Kd6 loss in 2 half-moves
11 Kd8 loss in 2 half-moves
12 Ra1 loss in 2 half-moves
13 Ra2 loss in 2 half-moves
14 Ra6 loss in 2 half-moves
15 Ra8 loss in 2 half-moves
16 Rb7 loss in 2 half-moves